Improvement in balanced valves



-w STEPHENS.

Balanced-Valves. t

Patented Feb. 274.1874.

W mm1 T MM firm @un UNITED STATES PATENT OFFICE WILLIAM STEPHENS, OFPITTSTON, PENNSYLVANIA.

IMPROVEMENT IN BALANCED VALVES.

Specification forming part of Letters Patent No. 147,997, dated February24, 1574; application tiled F,b:uary 5, 1874.

r[lo all 'whom it 'may concern:

Bc it known that I, WILLIAM STEPHENS, of Pittston, in the county ofLuzerne and State of Pennsylvania, have invented certain new and usefulImprovements in Balanced Valves; and I do hereby declare that thefollowing is a full, clear, land exaetdescription thereof, referencebeing had to the accompanying drawings, and `to the letters of referencemarked thereon, which forms part of this specification.

The nature of my invention consists in the construction and arrangementof a Waterescape and balanced puppet-valve combined, as will behereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I Will now proceed to describe itsconstruction and operation, referring to the annexed drawing, .in Which-A represents the chamber in which the valve B works. This valve ishollow and eylindrieal, and constructed substantially in the form shownin the drawing, so that the inside diameter at a' .e and the outsidediameter at y y Will be equal, thereby balancing the valve. The chamberA is formed upon the side of a tube, O,Whiel1 is provided with aninterior diaphragm or angular partition, D, forming the valve-seat a.,another valve-seat, b, being formed in the chamber A, and the valve Bconstructed to iit in both seats. C1 is the inlet, and G2 the outlet, ofthe tube C. d is the stein of the valve B. E represents a connectionWith the steam-chest to admit a supply of steam into the chamber A ontop of the valve B, to keep the same closed.

The end (J1 of the tube G being fastened to any convenient point on thecylinder, and communicating with the interior thereof', this device Willrelieve the Water with a greater ease Wit-hout the necessity of liftingthe Workingvalve, for as soon as the Water in the cylinder exerts agreater pressure than the steam in the steam-chest, the valve, being soevenly balanced, at once opens and relieves the cylinder of its Water,Whe-nee it passes away into the atmosphere, or to any place convenientto receive it.

Having thus fully described my invention, What I claim as new, anddesire to secure by Letters Patent, is-

The balanced valve B constructed as described, in combination' with thechamber A, tubeG, With diaphragm D, and valve-seats, a b, allsubstantiall y as and for the purposes herein set forth.

In testimony that I claim the foregoing as my oWn I affix my signaturein presence of two Witnesses.

VILLIAM STEPHENS.

Witnesses J AMEs HELM, ADRIAN MERRITT.

